
*{
    margin: 0;
    padding:0;
}
.wrap{
    width:100%;
height: 100%;
animation:  aa 2s linear ;

}
.header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4.167vw;
    padding: 0 6.25vw;
    position: fixed;
    top: 0;
    left:0;
    width: 100%;
    z-index: 10;
}

.header_layout{
    width: 90%;

}
.header .logo{
    margin-top: 10px;
    float: left;
    width: 136px;
    height: 48px;
    background: url(../images/logo.png)center no-repeat;
    background-size:100% 40px;
    
}
.header .nav{
    float: right;
    display: flex;
    font-size: .833vw;
    line-height: 1vw;
    margin-top: 5px;
}
.header .nav span{
    position: relative;
    color: #686f80;
    margin: 0 .938vw;
    padding: 1.354vw 0;
    cursor: pointer;
    transition: all .3s;
    font-size: .833vw;
    display: block;

}
.header .nav .span:hover .erji{
    height: 50px;
}
.header .nav .span{
    position: relative;
    color: #686f80;
    margin: 0 .938vw;
    padding: 1.354vw 0;
    cursor: pointer;
    font-size: .833vw;
}
.header .nav span:hover::before{
    content: "";
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: .156vw;
    display: block;
    background: #232938;

}
.active{
    
    border-top:3px solid #232938;

}
.header .nav span svg{
    width: 13px;
    height: 13px;
}
.content{
    width: 100%;;
    height: 100%;
}
.content_first{

    height:100vh;
    background: url(../images/bg1.jpg)center no-repeat;
    background-size: 100% 100%;
overflow: hidden;

}
#content_first{
    transition: all 2s;

}
.content_first .first_layout{
    width: 29.167vw;
    height: 100%;
    overflow: hidden;
    padding: 9.375vw 6.25vw 0;
}
.content_first .first_layout img{
    width: 100%;
    height: auto;
    filter: none;
    background-image: none;
}
.content_first .title{
    margin-top: 1.719vw;
    font-size: 2.917vw;
    line-height: 4.063vw;
    letter-spacing: .104vw;
    color: #232938;
    font-weight: 700;
}
.content_first .span{
    margin-top: .208vw;
    font-size: 2.5vw;
    line-height: 3.49vw;
    letter-spacing: .104vw;
    color: #686f80;
}
.content_first  p{
    margin-top: 1.875vw;
    font-weight: 400;
    font-size: .833vw;
    line-height: 1.458vw;
    text-align: justify;
    color: #686f80;
} 
.content_second{
    height: 70vh;
    width: 100%;
    clear: both;
    padding-top: 7px;
    padding-bottom: 267.2px;
    background: url(../images/bg2.jpg)center no-repeat;
    background-size:100% 100%;
    padding-left: 5.208vw;
}
.content_second .second_left{
   width: 29.167vw;;
   margin-top:15%;
   float: left;
}
.content_second .second_left img{
    width: auto;
    height: 82px;
    filter: none;
    background-image: none;
}
.content_second .second_left  h1{
    font-size: 2.917vw;
    line-height: 4.063vw;
    letter-spacing: .104vw;
    color: #232938;
    font-weight: 700;
    margin-top: 1.875vw;
}
.content_second .second_left p{
    margin-top: 1.875vw;
    font-size: .833vw;
    line-height: 1.458vw;
    text-align: justify;
    color: #686f80;
}
.content_second .second_right{
    width: 50vw;
    height: 150%;
   margin-left:10%;
   filter: none;
    float: left;
    background-image: none;
    background: url(../images/inline_right.png)center no-repeat;
    background-size: 100% 100%;
}
.content_third{
    height: 100vh;
    background: url(../images/bg3.jpg) no-repeat 0 0;
    background-size: 100% 100%;
    padding: 6.927vw 6.25vw 0;
    overflow: hidden;
    position: relative;
    z-index: 1;
    clear: both;
}
.content_third .title{
    position: relative;
    font-style: normal;
    font-weight: 600;
    font-size: 2.083vw;
    line-height: 3.125vw;
    color: #2a2a2b;
}
.content_third .title:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 6.25vw;
    height: .833vw;
    text-align: justify;
    background: linear-gradient(270deg,rgba(110,166,245,.198),#3b6de8);
}
.content_third .text_img{
    position: absolute;
    top: 2.604vw;
    right: 15.625vw;
}
.content_third .text_img:nth-child(2){
    top: 9.604vw;
    right: 25.625vw;
}
.content_third .text_img:nth-child(3){
    top: 36.833vw;
    left: 10.302vw;
    
}
.content_third .text_img:nth-child(4){
    top: 37.208vw;
    right: 20.708vw;
}
.content_third .text_img img{
     width: 11.458vw;
    height: 11.458vw;
}
.content_third .text_img .text{
    position: absolute;
    width: 20.833vw;
    height: 6.667vw;
    font-weight: 400;
    font-size: 1.302vw;
    line-height: 1.823vw;
    top: 2.448vw;
    left: 12.135vw;
    padding-top: 3.333vw;
    padding-left: 1.25vw;
    background: url(../images/vison.bg.png) no-repeat  0 0/18.75vw 6.667vw;
    color: #232938;
}
.content_fourth{
    height: 80vh;
    background: url(../images/bg4.jpg) no-repeat 0 0;
    background-size: 100% 100%;
    padding: 6.25vw .521vw 2.604vw 6.25vw;
}
.content_fourth .fourth_layout{
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.content_fourth .title{
    position: relative;
    font-style: normal;
    font-weight: 600;
    font-size: 2.083vw;
    line-height: 3.125vw;
    color: #2a2a2b;
}
.content_fourth .title::after{
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 10vw;
    height: .833vw;
    text-align: justify;
    background: linear-gradient(270deg,rgba(110,166,245,.198),#3b6de8);
}
.content_fourth .fourth_content{
    display: flex;
    padding: 0;
    overflow: hidden;
    flex: 1;
}
.content_fourth .fourth_content .fourth_left{
    width: 19.583vw;
    padding: 1.25vw 2.5vw;
    display: flex;
    flex-direction: column;
}
.content_fourth .fourth_content .fourth_left .search{
    display: flex;
    align-items: center;
    width: 100%;
    height: 2.917vw;
    background: #fff;
    box-shadow: 0 0.417vw 0.625vw rgba(59,109,232,.1);
    border-radius: 1.667vw;
    padding: 0 .417vw 0 0;
}
.content_fourth .fourth_content .fourth_left .search .search_box{
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 2.708vw;
    height: 24px;
    background: url(../images/sousuo.png)center no-repeat;
    background-size: 24px 24px;
}
.content_fourth .fourth_content .fourth_left .search input{
    flex: 1;
    width: 100%;
    height: 100%;
    border: none;
    font-size: .833vw;
    outline: none;
}
.content_fourth .fourth_content .fourth_left .search button{
    flex-shrink: 0;
    width: 4.167vw;
    height: 1.979vw;
    background: #3b6de8;
    border-radius: 1.042vw;
    font-size: .833vw;
    color: #fff;
    border: none;
}
.content_fourth .fourth_content .fourth_left .left_top{
    margin-top: 1.25vw;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 2.292vw;
    font-size: .729vw;
    line-height: 1.042vw;
    border-bottom: 1px solid rgba(0,0,0,.1);;
}
.content_fourth .fourth_content .fourth_left .left_top span{
    color: #3b6de8;
    cursor: pointer;
    float:right;
}
.content_fourth  .fourth_content .fourth_left .left_content{
    margin-top: 1.25vw;
    flex: 1;
    overflow-y: scroll;
}
.content_fourth  .fourth_content .fourth_left .left_content h3{
    font-size: .938vw;
    line-height: 1.302vw;
    color: #232938;
}
ul li{
padding-left:20px;
list-style: none;
}
.big .small{
    height: 0;
    transition: all .3s;
    overflow: hidden;
}

.content_fourth  .fourth_content .fourth_left .left_content input{
    float:left;
    margin-top: 5px;
    margin-right: 5px;
}
.content_fourth  .fourth_content .fourth-right{
    padding: 1.042vw 0 0;
    flex: 1;
    overflow: hidden;;
}
.content_fourth  .fourth_content .fourth-right .right-top{
    overflow: hidden;
    border-radius: 1.25vw;
    padding: .521vw 1.25vw;
    margin-top: .521vw;
    transition: all .3s;   
     margin-bottom: 4.6vh;
}
.content_fourth  .fourth_content .fourth-right .right-top .top_text{
    font-weight: 600;
    font-size: 1.042vw;
    line-height: 1.458vw;
    color: #232938;
}
.content_fourth  .fourth_content .fourth-right .right_center{
    display: flex;
    overflow: hidden;
    flex-wrap: nowrap;
    width: 100%;
    margin-top: .625vw;
}
.content_fourth  .fourth_content .fourth-right .right_center span{
    border-radius: 1.042vw;
    padding: 0 .625vw;
    height: 1.667vw;
    line-height: 1.667vw;
    margin-right: .625vw;
    margin-bottom: .521vw;
}
.content_fourth  .fourth_content .fourth-right .right_center span:first-child{
    background: rgba(222,100,121,.2);
    color: #de6479;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(2){
    background: rgba(95,197,147,.2);
    color: #5fc593;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(3){
    background: rgba(106,136,211,.2);
    color: #6a88d3;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(4){
    background: rgba(222,100,121,.2);
    color: #de6479;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(5){
    background: rgba(106,136,211,.2);
    color: #6a88d3;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(6){
    background: rgba(222,100,121,.2);
    color: #de6479;
}
.content_fourth  .fourth_content .fourth-right .right_center span:nth-child(7){
    background: rgba(95,197,147,.2);
    color: #5fc593;
}
.content_fourth  .fourth_content .fourth-right .right-end{
    margin-top: .625vw;
    font-weight: 500;
    font-size: .833vw;
    line-height: 1.25vw;
    color: #686f80;
    overflow: hidden;
    text-overflow: ellipsis;
}
.content_fourth  .fourth_content .fourth-right .right-end p{
    height: 1.25vw;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.content_fourth  .fourth_content .fourth-right .text_img{
    overflow: hidden;
    border-radius: 1.25vw;
    cursor: pointer;
    padding: .521vw 1.25vw;
    margin-top: .521vw;
    transition: all .3s;
}
.content_fourth  .fourth_content .fourth-right .text_img:hover {
    background: #fff;
    box-shadow: 0 0.417vw 0.625vw rgba(59,109,232,.1);
}
.content_end{
    font-family: PingFang SC;
    font-style: normal;
    height: 100vh;
    background: url(../images/bg5.jpg) no-repeat 0 0;
    background-size: 100% 100%;
    padding: 6.25vw 0 0;
    display: flex;
    flex-direction: column;
}
.content_end .end_layout{
    width: 100%;
    padding-left: 2.083vw;
    padding-right: 1.042vw;
    box-sizing: initial;
}
.content_end .title{
    margin-top: 6.771vw;
    font-size: 2.5vw;
    text-align: center;
    position: relative;
    font-style: normal;
    font-weight: 600;
    line-height: 3.125vw;
    color: #2a2a2b;
}
.content_end .title::after{
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 6.25vw;
    height: .833vw;
    right: 0!important;
    margin: 0 auto;
    text-align: justify;
    background: linear-gradient(270deg,rgba(110,166,245,.198),#3b6de8);
}
.content_end span{
    margin-top: 2.083vw;
    margin-bottom: 2.083vw;
    font-weight: 500;
    font-size: 1.042vw;
    line-height: 1.667vw;
    color: #2a2a2b;
    text-align: center;
    display: block;
}
.content_end  .text{
    margin: 0 auto;
    width: 62.5vw;
    height: 10vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(1turn,hsla(0,0%,100%,.39),hsla(0,0%,100%,0));
    backdrop-filter: blur(3.539vw);
    border-radius: .625vw;
}
.content_end .text p{
    font-weight: 400;
    font-size: .833vw;
    line-height: 1.458vw;
    text-align: center;
    color: #66686e;
    text-shadow: 0 1px 1px #fff;
    text-indent: 1.667vw;
}
.footer{
    background: #1a1c21;
    font-weight: 400;
    font-size: .938vw;
    line-height: 1.302vw;
    color: #fff;
}
.footer_layout{
    
    display: flex;
    align-items: center;
    justify-content: center;
    height: 3.125vw;
    width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
    min-width: 50.833vw;
    padding-left: 6.25vw;
    padding-right: 6.25vw;
}
a{
    text-decoration: none;
    color:black;
}
.erji{
    width: 6.25vw;
    left: 0;
    top: 65px;  
      font-size: .729vw;
    line-height: 1.146vw;
    position:absolute;
transition: all .2s;
    height:0;
    background-color: #fff;
overflow: hidden;
    margin-top: -1.042vw;
    width: 6.25vw;
}
.erji b{
padding-left:5px;
    font-weight: normal;
    display: block;
    margin-bottom: 10px;
}
.erji b:hover{
    color: #4176fe;
    background-color: #f0f7ff;
}
.fixed{
   background: #fff;
   transition: all .5s;
}







































